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Engine computer supplies voltage through oil pressure switch. No oil pressure no power to fuel pump. Turn key on you should get a 12volt shot to fuel pump to prime system. After that the oil pressure switch has to be good to continue to hive 12volts to pump
Well pumping the pedal on a fuel injected car does nothing. If there are no trouble codes stored in the computer, look for excessive fuel from the injectors or the fuel pressure regulator. Or lack of air thru the idle air control valve.
have 1995 pontiac bonniville sse fuel all the way to injectors will run if you put fuel into intake then starts and runs till fuel runs out. I have replaced fuel pump and fuel pump filter,cam postion sensor and coil paks
The fuel filter is located on the fuel feed pipe, between the fuel pump and the fuel injectors. The paper filter element (2) traps particles in the fuel that may damage the fuel injection system. The filter housing (1) is made to withstand maximum fuel system pressure, exposure to fuel additives, and changes in temperature. There is no service interval for fuel filter replacement. Replace a restricted fuel filter.
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